Why Choose the LOVATO Electric 11B40040048 Four-Pole Contactor?
The LOVATO Electric 11B40040048 is a heavy-duty four-pole industrial power contactor engineered for reliable switching of high-current electrical loads. As part of the robust LOVATO B400 contactor series, it offers a conventional free-air thermal current rating of 550 A (AC-1) and an operational current of 420 A (AC-3), making it ideal for demanding industrial motor control, power distribution and automation systems.
Equipped with a versatile 48 V AC/DC control coil, this contactor integrates easily into both AC and DC control circuits. Its four-pole configuration enables simultaneous switching of four conductors, making it particularly suitable for applications requiring neutral switching or complete isolation of three-phase power circuits.
Designed for dependable long-term operation, the 11B40040048 combines a robust screw-mounted construction, high insulation performance and long mechanical life with compliance to major IEC, UL and CSA standards, ensuring reliable performance in industrial control panels, switchboards and OEM machinery.
Key Advantages
- Heavy-duty four-pole industrial contactor.
- 550 A AC-1 thermal current rating.
- 420 A AC-3 operational current for demanding motor applications.
- 48 V AC/DC control coil for flexible control systems.
- Suitable for motors up to 225 kW at 400 V AC-3.
- Long mechanical life with robust industrial construction.
Key Features
- LOVATO B400 industrial contactor series.
- Four normally open main power poles.
- 550 A conventional thermal current (AC-1).
- 420 A AC-3 operational current.
- 133 A AC-4 operational current at 400 V.
- 48 V AC/DC control coil.
- 225 kW motor rating at 400 V AC-3.
- Mechanical life up to 10 million operations.
Reliable Four-Pole Industrial Switching
Four-pole contactors provide safe switching of high-current electrical circuits using a low-power control signal. They enable PLCs, relays, pushbuttons and automation controllers to operate industrial loads while maintaining electrical isolation between the control and power circuits.
The LOVATO B400 series is engineered for demanding industrial environments where high current capacity, dependable switching and long service life are essential. Its four-pole configuration makes it ideal for power distribution, neutral switching and heavy-duty motor control applications.
Typical Applications
- Industrial motor control centres.
- Power distribution panels.
- Heating and resistive load switching.
- Industrial switchboards.
- OEM machinery.
- Process automation equipment.
- Three-phase systems with neutral switching.
- Heavy industrial electrical installations.
